source arch/arm/mm/Kconfig
+config IWMMXT
+ bool "Enable iWMMXt support"
+ depends CPU_XSCALE || CPU_XSC3
+ default y if PXA27x
+ help
+ Enable support for iWMMXt context switching at run time if
+ running on a CPU that supports it.
+
# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
config XSCALE_PMU
bool
ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
- ARCH_AT91RM9200 || MACH_TRIZEPS4
+ ARCH_AT91 || MACH_TRIZEPS4
help
If you say Y here, the LEDs on your machine will be used
to provide useful information about your current system status.